Pipe connection.



y, n. 702596..- k Y Pa'fented lu'n lI7, |902.

- G. F. RYAN.

PIPE-conneclon.

(Appcmon med Beps. 27, 1901.)

. (Ilo' Model.)

738521604647.; I Y (@M f/f YN: MORRIS PETERS CD. PHOTQLITHO.. wAsHmm'on. n. n.

Pafenied :une 17, |902.

G. F. RYAN. PIPE CONNECTION. (Applicatioq iled Sept. 27, 1901.)

` 2 Sheets-Shut 2.

(No Model.)

, a sewer-pipe.

Nieren ySTATES PATENT OFFICE.

GEORGE F. RYAN, OF CHICAGO, ILLINOIS.

PIPE CONNECTION.

SPECIFICATION forming part of Letters PatentrNoll'702,596, dated J une 17, 1902. Application filed September Z7, 1901. Serialll'o. 76,719. (No model.)

T0 @ZZ whom t may concern: i

Be it known that I, GEORGE F. RYAN, of Chicago, in the county of Cook andState of Illinois, have invented certain new and usefulv earthenware sewer-pipe, to a metallic tting' or pipe in such manner as to secure a strong and tight joint between the joined parts.

The invention consists in the matters hereinafter described, and pointed out in the appended claims.

In the accompanying drawings, Figure lis a view in longitudinal sectionof a length or section of earthenware sewer-pipe and a metal fitting, such as is placed in the floor of an area or in like location to receive surface water. Fig. 2 is a plan section of the same, taken on line 2 2 of Fig. 1. Fig. 3 is a view, in longitudinal section showinga somewhat-different form of connection employed in connection with a slip-joint between a non-metallic and a metal pipe. Fig. lis alongitudinal section illustrating a modification of theconstruction' or space to provide for irregularities in the shown in Figs. l and 2.

Referring tothe construction illustrated in Figs. l and 2 of said drawings, A indicates a length or section of earthe'nware pipe, and B a metal part or fitting attached to the same, the fitting shown in Figs. l and 2 and in Fig. 4f being such as is placed in a floor or pavement to receive drainage therefromv and being secured to the upper end of the pipe A, which in the instance illustrated is the upper end of Thefi'tting B is provided with an integral tubular projection or'sleeve B', which is screw-threaded on itsouter surface and engages interior screw-threads formed on the pipe-section A. The said screw-threads will preferably be formed in molding or shaping the pipe-and will bev made large or coarse and of rounded form or with concave and con` Vex surfaces and without angles, this form of screw-thread being employed to facilitate the molding of the pipe and because a rounded thread is less liable to injury in burning the pipethan would a small and angular thread.

Onthe exterior of the pipe A is formed an annular shoulder C, which faces toward the end of the pipe to which the fitting B is attached.

Connected with' the .fitting B is an exterior sleeveBwhichsurrounds or embraces the end portion of the pipe A and is provided on its end margin with an annular bearing-face h, which when the parts are assembled opposes the annular shoulder C. Between the saidshoulder C and the annular bearing-surface b is placedv a packing ring or gasket D. The screw-threaded connection between the earth enware pipeand the sleeve B- is'not designed to aord a tight joint between the 'parts and will vusually not be especially tight-fitting, because 'of the slight irregularities necessarily resulting from the molding and burning of the pipe; but such screw-threaded joint will be used to hold the parts from endwise movement, while the gasket D will be relied upon to afford the necessary air or water tight joint between the parts. Manifestly the exterior sleeve B2 will be forced toward the shoulder C,

so as to compress the gasket D, by turning thef l external surface of'said pipe. The shoulder Cis also located on ythe pipe C2 at such dis-V tance from the outer end of the sleeve B2 that when'the gasket Dis clamped between the end surface of the .said sleeve and shoulder a space'will be left in the end of the pipe A and the bottom wall of the fitting B, which joins the sleeves B' and B2, thereby affording space A or clearance to enable the gasket to be tightly clamped'between the said sleeve B2 and the shoulder C, notwithstanding irregularity in the endof the-pipe..

To prevent the sleeve Band parts attached thereto from being turned backwardly or un- IOO and having nuts e at their lower ends which bear against the end of the pipe and by which they are tightly held in place. Holes willbe formed in the wall of the pipe for receiving the bolts E during the operation of molding the pipe, the holes beingeasily formed by thrusting a rodeudwise through the soft clay after the pipe is molded. The bolts E will preferably be `made of brass or copper rather than iron, which is likely to be destroyed by rust. Said rods E are not intended to be relied upon as a means of holding the fitting and parts connected therewith in position with respect to the pipe A, but the engagement of said sleeve B with the pipe is mainly relied upon for this pu rpose,the screw-threaded connection of the sleeve with the pipe, together with the engagement of the sleeve B2 with the exterior shoulder C, serving to form a strong and rigid attachment of the fitting to the pipe, such as is required in the case of house-drains, by reason of the fact that the fitting B is usually exposed to the surface of the ground or pavement and is liable to be subjected to the impact or pressure of heavy articles or weights. The shoulder C is shown as formed by means of a radial flange C', which projects from the surface of the pipe A and is provided with a cylindric extension C2, which cylindric ange forms an annular groove or bell, in which the end of the sleeve B2 is seated. Said sleeve B2 is, moreover, preferably provided with a radial flange b', on which is formed the annularbearing-surface Z) and which affords the necessary bearing-surface for contact with the said gasket D. After the parts have been connected the bell formed by said cylindric flange C2 affords a groove or space surrounding the flange b', within which after the parts have been assembled a filling B3 of cement may be inserted to protect the gasket, and as an additional means of maintaining a tight joint at the point where the sleeve B2 meets the shoulder C of the earthenware pipe. As a further and separate improvement I form the shoulder C and the bell surrounding the same on an earthenware sleeve C3, which is made separate from and fitted around the pipe A and is secured thereto by cement or like material placed between the parts. rlhe layer ot' cement which serves to secure the sleeve C3 to the pipeA is indicated by c. The portion of the exterior surface of the pipe A surrounded by the sleeve C3, as well as the interior surface of said sleeve, may be roughened or slightly corrugated, if found desirable or necessary, in order that the cement may adhere more strongly to the surfaces between which it is placed.

An important advantage gained by forming the shoulder C upon a separate sleeve C3 is that such sleeve may be adjusted in position upon the pipe, when it is secured thereto by the cement, so as to bring the shoulder exactly in desired position with relation to the end of the pipe, according to the length of the sleeve B2, the thickness of the gasket D, and other conditions which may prevail in any particular case.

In Fig. 3 I have shown a construction wherein the connection between a metal fitting B and an earthenware pipe Ais afforded by a sleeve B' like that hereinbefore described, the said fitting in thisinstance, however, being employed to afford a sliding or slip joint between an iron sewer-pipe F, such as may be used in a building, and the earthenware pipe. In this instance the shoulder C is formed on a radial ange Cf, made integral with the pipe A, said flange C1 being provided with a cylindric flange C5, forming a bell to receive a filling B5 of cement in the same manner as hereinbefore described. The slip-joint between the pipe F and the fitting is like that illustrated in my prior application, Serial No. 46,176, filed February 6, 1901, the same embracing a ring G, which forms an extension of the fitting B4, a second ring I-I, which fits within the ring G, and a packing ring or gasket I, said gasket I being located between a shoulder b2 on the fitting and an oblique shoulder 7L on the inner end of the ring H, said oblique shoulder 7L serving when the ring is forced inwardly to press the gasket toward the pipe F, and thus form a tight joint adapted to permit the said pipe to slide or move under expansion or in case of settlement of the building in which the pipe is placed. To provide for forcing the ring II inwardly toward the shoulder b2, the rings G and II are provided with radial lugs g 7L', through which are inserted bolts I-I', which serve to adjustably secure said rings to each other and by means of which the ring I-I may be drawn into the ring G and the gasket tightened against the pipe F in the manner described. In said Fig. 3 I have shown a bolt .I as inserted through the fiange b' on the sleeve B2 and also through the radial flange C4, said bolt serving the same purpose as the bolt E, hereinbefore described--thatis to say, to prevent the sleeve B2 being turned in the pipe A in such manner as to loosen the joint afforded by the packing or gasket.

In Fig. 4 I have shown a further modification of the pipe connection embodying the general features hereinbefore set forth. In this instance the sleeve B and earthenware pipeA are provided with screw-threaded engaging surfaces in the same manner as hereinbefore described. Said sleeve B in this IIO instance, however, is provided with an exteserted through'the flange B5- and endwise through the wall ofthe pipe.

In all of the several Aforms of joints illustrated the screw-threaded connection between tbe interior metal sleeve and the exterior earthenware pipe affords a strong and rigid connection between the parts calculated to withstand any strain to which the joint may be subjected, the gasket applied between the shoulder on the pipe and the flange on the said sleeve between the earthenware pipe and metal sleeve being, however, relied upon to maintain the necessary air-tight connection between the parts. y

If desired, the metal sleeve B may be further secured to the earthenware pipe by inserting cement between the screw-threaded surfaces ofthese parts at the timethe screwthreaded sleeve is inserted in the earthenware pipe. The cement in such case may be introduced in semitluid form and will harden after the parts have been brought to the proper position. The use of a cement in the joint between the metal sleeve and earthenware pipe cannot, however, be relied upon to always maintain an air-tight joint, because of the liability of the cement to crack or loosen in case the fitting is subjected to heavy shocks or strains, and the use of a gasket is therefore necessary to insure such an air-tight joint. In case cement is introduced between the sleeve and pipe it will, however, serve to prevent relative movement of' the parts, such as might occur if no cement were used, and the presence of such cement will therefore be of advantage, at least in alleases where the metal sleeve .fits loosely in the pipe.

I-claim as my invention- .1. The combination of an earthenware pipe provided with interior screw-threads, a metal fittingprovided'with a sleeve having exterior screw-threads, said earthenware pipe having an annular shoulder and the fitting being provided with an annular bearing-face which opposes the shoulder when the sleeve is inserted .in said pipe, and a packing ring or gasket located between said shoulder and the said annular` bearing-face of the fitting, and a bolt connecting said tting with the earthenware pipe to prevent the turning of the said sleeve in the pipe. s

2. The combination of an earthenware pipe provided with interior screw-threads of large size and rounded form, a metal fitting pro- .annular shoulderl and theV fitting having an` annular bearing-face whichopposes the said shoulder when the sleeve is inserted in the pipe, and an annularpacking or gasket lo-V f cated between said shoulder and said annular bearing-face. 1

3. The combination of an earthenware pipe' provided with interior screw-threads, a metal fitting provided with a sleeve having exterior j shoulder and a flange exterior thereto forming a bell, and the fitting beingprovidedwith a radial flange which forms a bearing-surface opposin g the said shoulder, a gasket between said shoulderand annular bearing-surface,-

and a filling of cement or the like appliedin th'esaid bell over the said flange.

4. The combination of an earthenware pipe' provided with interior screw-threads,a metal fltting provided with a sleeve having exterior posed between said.` shoulder and' annularv .bearing-surface;

5. The combination of an earthenware pipe provided with interiorscrew-threads, ajmetal fitting provided with exterior screw-threads,

said pipe having an exterior fiange forming-` an annular shoulder and ythe, fitting' having an exterior sleeve which embraces the end of` the pipe `and whichfis provided with-a radialv flange onwhich is formed an annular bearing-surface opposing said shoulder on'the l pipe, a gasket interposed between said annular shoulder and bearing-surfacd'and .afilling of cement or the like applied within said bell over said radial ange. l

1 .6. The combination of an earthenware pipe 7. The combination'with an earthenware pipe, a separate earthenware sleeve surrounding the pipe and provided with a shoulder and with a flange exterior theretoyforminga bell, a fitting provided with an interior sleevej which enters `the pipe andwith an exteriorA sleeve which embraces the -end of'- thefsaid pipe, said exterior sleeve having an annular bearing-surface opposing the shoulder on saidl exterior earthenware sleeve,'and a gasket in- IIO terposed between said shoulder and the an-z nular bearing-surface von saidexterior sleeve of thefitting.

8. The combination of an earthenware pipe" f' provided with interior'screw-threads, a fitting provided with a sleeve having exterior screwthreads, and a bolt eugaging'said'fitting andl passing endwise through the wall'of said pipe. 9. The combination of an earthenware pipe provided with interior screw -"threads,'an

earthenware sleeve surrounding said pipe and provided with an annular shoulder and a fiange exteriorthereto lforming a bell', a fitting provided withan interior sleeve having exterior screw-threads and with an exterior isleevewhich embraces the endofthe pipe and has at its end'a "radial flange, agasket interposed betweensaid flange 'and the annular shoulder onI the Y earthenware" sleeve,

`anda lling of cement 'applied insaidy bell overv the saidradialange on the exterior sleeve of thetting.

l0. The combination of an earthenware pipe provided with interiorscrew-threads, an earthenwzire sleeve surrounding said pipe and provided with an annular shoulder, afitting provided with an interior sleeve having exterior screw-threads and with au exterior sleeve which surrounds the end of the pipe and is provided with an annular bearingsurfaoe, a gasket interposed between said io shoulder and annular bearing-surface, and a ence of two Witnesses, this 24th day of Sep- 15 tember, A. D. 1901.

GEORGE F. RYAN. NVitnesses:

C. CLARENCE POOLE, GEETRUDE BEYCE. 

